TeX Quellcode:
\begin{array}{rclll} 6\cdot (2\cdot 0 -4)-7 &=& 9-8\cdot \left(\dfrac{1}{4}\cdot0+5\right) \cr 6\cdot(-4)-7 &=& 9-8\cdot 5 \cr -24-7 &=& 9-40 \cr\cr -31 &=& -31 \end{array}